Questions tagged [plastic]

For questions about utilizing plastic, or materials meant to be used with plastic. Questions about specific types of plastic, such as PVC or ABS, should also use those tags.

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What kind of coating or paint can i use for UV pigments?

I have gotten my hands on some powdered pigment that is uv reactive, meaning that it reflects UV light in the visible spectrum. I would like to use this pigment for a few projects outside. The ...
Martin Nielsen's user avatar
2 votes
2 answers
73 views

Tapering a 43mm hole in 1/2" acrylic sheet out to 47mm

I have been all over the Internet looking at reamers, cone grinders, cone sanders, tapered wheel polishers and more, and I never seem to find a solution. Everything is too small, too large or the ...
iPaul's user avatar
  • 21
3 votes
2 answers
49 views

Adhesive or glue for attaching fabric to hard thin plastic

I am creating a purse from a plastic Halloween cauldron by creating a drawstring opening and gluing/adhering it to the inside rim. The drawstring opening is only to prevent items from falling out of ...
Wimateeka's user avatar
  • 1,091
3 votes
1 answer
946 views

How to avoid bubbles in castings using dissolved Styrofoam?

I'm trying to do low-budget plastic casting. The process is pretty simple. Put Styrofoam in acetone. It dissolves into some goo. Stick the goo in a mold and wait for it to harden. When I try it, the ...
Dolly's user avatar
  • 581
2 votes
1 answer
143 views

What materials are chosen for poly binders?

Consider the following binder: Such binders are usually made of a single plastic sheet. The sheet is flexible and durable as you open/close the binder. I think they're formed into their U shape by ...
caveman's user avatar
  • 251
2 votes
3 answers
146 views

What material(s) I can use to make this kind "hard" waterproof board at home?

I need to make L plates (it is used for learner motorcycle riders in many countries) at home. Previously, I made it using a thick 250 gsm paper. I got L printed on it. But with time it faded and when ...
Vikas's user avatar
  • 363
5 votes
3 answers
6k views

What does 'mil' mean when measuring thickness?

I asked a question about transparencies, and while doing research for it, I found a lot of websites mentioned their products were N mil thickness. What does mil mean when talking about the thickness ...
Wimateeka's user avatar
  • 1,091
2 votes
2 answers
109 views

Why do my poster colours behave strangely on my plastic palette?

I have poster paints - Camlin poster paints to be precise. I have 2 palettes, but both of them are plastic palettes. When I try to put a color on any of the palettes, they “go away”, like they don’t ...
InfoDaneMent's user avatar
1 vote
1 answer
116 views

How can I make hollow transparent spheres between 25 and 29 mm diameter?

I'm restoring an old fan that used a horseshoe-shaped steel pipe for the base, and the ends of this pipe are closed of with two caps. The caps are made of a transparent plastic, their shape reminding ...
user2934303's user avatar
2 votes
2 answers
156 views

Is there a good low toxicity / food safety clear casting material?

I need to cast some plastic resin into the wood, such as to make a cutting board, where the resin is minimally toxic. (For the moment, let's ignore the toxicity of the wood itself.) I have used the &...
cmm's user avatar
  • 131
2 votes
1 answer
256 views

How to mold outer shoe sole to the shape of my feet without using a last?

I'm currently sewing my first pair of shoes. They are made of fabric only (no leather, cork or other materials) and a commercial foam insole for comfort. I have covered the insole with matching lining ...
Elmy's user avatar
  • 13.1k
2 votes
1 answer
306 views

Are all plastic erasers not recommended or harmful for non-smooth papers like a casual sketchbook?

I read an answer here which says: If you are doing technical drawings on a smooth, heavyweight paper, or paper with a "shiny" surface due to size, plastic erasers will be the way to go most ...
Vikas's user avatar
  • 363
2 votes
1 answer
3k views

Can I mold plastic (HDPE or LDPE) in silicone?

I've seen people molding plastic trash--like HDPE (from bottle caps, milk bottles...that type of thing) or plastic bags into a marbled solid plastic. But, in these videos most of them seem to be using ...
Rena W's user avatar
  • 23
0 votes
1 answer
1k views

How to get a smooth and glossy professional finish on plastic?

Whenever I do a project with plastic I find that no matter how hard I try (light layers, long cure times) it's always obvious that it's a DIY paint job. How can I achieve a glossy finish like in this ...
Sean C's user avatar
  • 1
7 votes
1 answer
2k views

What type of paint for mildly flexible plastics?

I have a couple of roughly fist-sized plastic† pieces that I'd like to paint (I'll post a pic as soon as I can); preferably with a spray but brush is OK too. First I intend to lay down a primer (for ...
Jason C's user avatar
  • 275
2 votes
1 answer
379 views

Fixing double-ball joint on a 6'' scale action figure

I currently have a Figma 6 inch scale figure and unfortunately, I broke off a peg from the double ball shoulder joint. The broken peg was stuck in the hole connecting the arm so I used a knife to jam ...
EPIC Tube HD's user avatar
7 votes
3 answers
12k views

Remove scratches from a (resin or plastic) stuffed animal eye

I recently visited my childhood home and brought back some of my old favorite stuffed animals. One of them, Snip the Beanie Baby, has noticeable scratches/dents/nicks/chips on her eyes. What is the ...
Wimateeka's user avatar
  • 1,091
-4 votes
3 answers
101 views

Are the teeth of this machine iron or steel? [closed]

I want to buy or have such a machine built, but the teeth must be steel. [Shredding Hard and Soft Things with Plastic Crushing Machine][1] https://youtu.be/z1-wj7Go8R0
Lonelyman40's user avatar
2 votes
1 answer
152 views

DVD/Bluray Plastic Cover

I am trying to recreate the plastic cover which holds the art cover, of a DVD or Bluray case. I have suitable transparent plastic, but don't know how I should join/glue the edges to the case. I have ...
Josh Kahane's user avatar
0 votes
1 answer
61 views

How to utilise plastic straws? [closed]

I want craft ideas because I have a heap of plastic straws that I want to use for some sort of craft. Any ideas?
Dancing Piney's user avatar
1 vote
1 answer
173 views

How should I clean these plastic items? [closed]

The items in the pictures below happen to be plastic beach beds, but the same requirements could apply to upcycling old plastic items and needing to clean them first, or other crafting needs. I ...
Claire's user avatar
  • 121
2 votes
2 answers
640 views

How to repair heavy duty nylon seam?

I bought a heavy sandbag which is supposed to be able to be dropped. Given the good ratings it has, I assume it had a manufacturing fault as the seam exploded the first time I dropped it. Luckily, as ...
Griffin's user avatar
  • 121
4 votes
1 answer
3k views

How do I remove modelling clay from my parts and silicone mold?

I've just created my first silicone mould, well, the first part of a two part mould. I've used OOmOO 30, which is great. However, I've used a modelling clay called Sculpey III to raise parts in the ...
Phil Collins's user avatar
4 votes
2 answers
2k views

I am looking to melt some leftover acrylic into a mould, at home. Are there fumes that I should be worried about?

So, the title just about sums it up. I've cut some acrylic sheets to make vitrines for some painting frames and I have some leftover strips of acrylic. I have an idea of what to use the acrylic for, ...
Valeriano's user avatar
3 votes
1 answer
71 views

Rectangle-Cylindrical Enclosure ideas?

Sadly SE doesn’t really have a great fit subsite for my specific question, and the DIY stack exchange is mainly for home improvement. Thus, I post here. I have designed a usb device and ordered and ...
Hackstaar's user avatar
  • 185
4 votes
2 answers
1k views

What's a good non-adhesive plastic sheet to protect soft-back books?

I'd like to use non-adhesive transparent plastic sheet to wrap a soft-back book to protect it for long-term frequent use. I'd like to try the method #3 described in https://www.wikihow.com/Cover-a-...
qazwsx's user avatar
  • 141
1 vote
1 answer
553 views

Laminating with pouches or plastic under 75 micron

I'm trying for my project to create some professional looking covers for handmade books and booklets, so I recently bough an electrical plastificator / laminator machine that support both hot and cold ...
user3450548's user avatar
5 votes
1 answer
540 views

DIY acrylic lamp engraving problem

I've been trying to make an acrylic lamp for a while - in short: engrave a piece of acrylic, and then put LED strip under it to light it up - but ran into some problems. As you can see in the image, ...
NoDaniel's user avatar
3 votes
1 answer
1k views

How to reproduce faux tortoise shell material

I'd like to mimic this faux tortoise shell material: Ideally I need the material to be like a thin layer of plastic (probably less than 2mm). I tried using clear epoxy resin + colors, and I almost ...
Dimitri Petrucci's user avatar
2 votes
1 answer
296 views

Alternative for wickes PVA glue in america

I was watching a tutorial on youtube for getting a plastic finish with smooth on's 65D plastic and Wickes PVA glue. https://www.youtube.com/watch?v=MDwQg6CX25A (5:40 roughly) I can get the smooth on ...
Jordan Klaers's user avatar
2 votes
1 answer
146 views

Re-bending a bent plastic figure to stand up straight [closed]

I have a plastic miniature person (an archer) from a board game, but she was unfortunately bent either during packaging or during initial molding. She leans WAY over... I put her in a bowl of very ...
Kenny Wyland's user avatar
2 votes
2 answers
186 views

Dishwasher-proof way to personalize plastic lunch containers

So, I meal prep, and I use bowls like this to carry my prepped lunches to work: From another angle, showing the lip below the lid: The recycling mark on the bottom says they are polypropylene for ...
Haem's user avatar
  • 123
3 votes
1 answer
173 views

What is this holographic material

I have some decorations that have standard fairy lights behind some plastic which creates a kind of holographic effect. There is a similar product here: https://www.amazon.co.uk/dp/B07JB979HD What ...
Tom B's user avatar
  • 41
2 votes
1 answer
79 views

Remove or hide red colour from trackpad on laptop [closed]

I have this Lenovo Y720 laptop which got an overall black design, but this one red square is driving me nuts. Is there a way to paint it black or some vinyl I can add? There are no skins for it.
Trintefaso's user avatar
2 votes
1 answer
380 views

It is possible to create powerful crucible that you can melt plastics in it? If yes, how can I create it from simple materials?

I’m asking this because, I’m trying to find how to make a powerful crucible that when you melt any plastic in it, it doesn’t not happen anything to it, and you can also hold it with your hands even ...
Alex A's user avatar
  • 203
2 votes
3 answers
7k views

From what material/s I need to create a mold so that I can pour in it safely any kind of molten plastic?

I want to create a mold, so that when I want to make for example, planet Earth in plastic in 3D, then I can pour the molten plastic into mold. So that I can give a form. Not only this, but… when I buy ...
Alex A's user avatar
  • 203
5 votes
2 answers
1k views

How to cut a hole in a globe without breaking it?

Together with my fiancée, we bought a globe very similar to the one below (same brand). Now we want to cut a clean, rectangular hole (roughly 8 cm x 1-2 cm) in it in order to put envelopes in it but, ...
Olivier Grégoire's user avatar
1 vote
1 answer
141 views

Making plastic mold from plastic sheet

I would like to make some plastic mold for my arcrylic pieces. Is there any good way to create the plastic mold not using vacuum former? Vacuum former example
newlearner's user avatar
8 votes
1 answer
243 views

Plastics options for molding

I am creating a sword for cosplay, and I need the material used to be clear, rigid, and lightweight, and to cure properly in such a thin mould (and can be poured into the mould I have, as I'd prefer ...
Jordan Klaers's user avatar
1 vote
1 answer
1k views

Mice/hamster chew proof plastic material

I am making a custom enclosure for small animals. I was wondering whether non-toxic and chew proof plastic exists and what is it called?
Nadia Hristova's user avatar
2 votes
1 answer
108 views

Adhesive for applying keyboard keys to wood

I have a mosaic made of keyboard keys that I made by gluing the keys to a piece of cardboard. After some time, the cardboard has begun to warp under the weight of the affixed keys. I now have a ...
Wimateeka's user avatar
  • 1,091
5 votes
2 answers
704 views

Dyeing hard polycarbonate plastic

I have a hard, polycarbonate globe, like this one pictured below. I am trying to make it look like an eyeball. I am lighting it from inside, and I already have a good blue iris that I made out of blue ...
Gary Reckard's user avatar
1 vote
1 answer
176 views

How to make plastic badges?

Anyone know how these are made at the gym I think they use a gym but how is it made ?
John doe's user avatar
  • 111
2 votes
1 answer
131 views

Plastic paint on laptop

I have this black touchpad with a red paint around it, how can I make this black? Does some vinyl exist? Paint? I tried to find some touchpad skins that matched the rest of the laptop, but i couldn't ...
user avatar
4 votes
1 answer
66 views

What's the name of this type of acrylic?

I recently came across Love Hulton's amazing work and was especially impressed by the aesthetic of the pearly acrylic front of the datorbox. I saw the same material being used for fashioning guitar ...
gnzg's user avatar
  • 143
4 votes
1 answer
221 views

How to make adjustments to a PVC raincoat?

I have a raincoat made of PVC that I’d like to make some adjustments to: adding more buttons or other ways of attachment (it is full-length but it has buttons only to the knee); adding a string at the ...
user avatar
2 votes
1 answer
103 views

Can I use Lucas oil colors for painting plastic kits?

I bought a plastic fighter kit, now I want to paint it with an airbrush and some oil colors. Now, I've got a question : Can I use Lucas oil color for painting plastic kits? Is it permanent after ...
BattleTested_закалённый в бою's user avatar
9 votes
2 answers
3k views

What kind of paint marker will work for flexible vinyl?

I'm making a mini cape out of flexible vinyl, like the kind used for window clings. I need to leave light blue, permanent marks on the vinyl that won't peel or flake as the cape is flexed. I'd really ...
user avatar
2 votes
2 answers
6k views

Which adhesives work well when gluing vinyl to plastic?

I am looking to glue some vinyl tablecloth material (the type you can buy anywhere in France as it is waterproof and usually left out on garden tables) to a plastic swing bin. Does anyone know which ...
Jan B's user avatar
  • 51
3 votes
2 answers
1k views

Vacuum forming/thermoforming elastic materials?

I need to create a few dozen opaque domes/hemispheres of various sizes from 80 cm to 120 cm. The shape is pretty basic, for example: Source The domes have to be foldable into smaller pieces for easy ...
Leo Ervin's user avatar
  • 103